Home / 99,608.09-137,443.05-59,320.80

Finding the Fourth Proportional to 99,608.09, 137,443.05 and 59,320.80

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Solution

The fourth proportional to 99,608.09, 137,443.05 and 59,320.80 is: 81,853.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,608.09 : 137,443.05 = 59,320.80 : x
  2. Step 2: Convert to fraction form
    99,608.09/137,443.05 = 59,320.80/x
  3. Step 3: Cross multiply
    99,608.09x = 137,443.05 × 59,320.80
  4. Step 4: Simplify right side
    99,608.09x = 8,153,231,680.44
  5. Step 5: Solve for x
    x = 8,153,231,680.44/99,608.09
  6. Step 6: Final answer
    x = 81,853.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.